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use crate::headers::{HeaderValue, Values};
use std::fmt::{self, Display};
use std::iter::FromIterator;
use std::ops::{Deref, DerefMut, Index};
use std::slice::SliceIndex;
#[derive(Debug, Clone)]
pub struct HeaderValues {
pub(crate) inner: Vec<HeaderValue>,
}
impl HeaderValues {
pub fn append(&mut self, other: &mut Self) {
self.inner.append(&mut other.inner)
}
pub fn get(&self, index: usize) -> Option<&HeaderValue> {
self.inner.get(index)
}
pub fn get_mut(&mut self, index: usize) -> Option<&mut HeaderValue> {
self.inner.get_mut(index)
}
pub fn last(&self) -> &HeaderValue {
self.inner
.last()
.expect("HeaderValues must always contain at least one value")
}
pub fn iter(&self) -> Values<'_> {
Values::new_values(&self)
}
}
impl<I: SliceIndex<[HeaderValue]>> Index<I> for HeaderValues {
type Output = I::Output;
#[inline]
fn index(&self, index: I) -> &Self::Output {
Index::index(&self.inner, index)
}
}
impl FromIterator<HeaderValue> for HeaderValues {
fn from_iter<I>(iter: I) -> HeaderValues
where
I: IntoIterator<Item = HeaderValue>,
{
let iter = iter.into_iter();
let mut output = Vec::with_capacity(iter.size_hint().0);
for v in iter {
output.push(v);
}
HeaderValues { inner: output }
}
}
impl Display for HeaderValues {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut list = f.debug_list();
for v in &self.inner {
list.entry(&v);
}
list.finish()
}
}
impl PartialEq<str> for HeaderValues {
fn eq(&self, other: &str) -> bool {
self.inner.len() == 1 && self.inner[0] == other
}
}
impl<'a> PartialEq<&'a str> for HeaderValues {
fn eq(&self, other: &&'a str) -> bool {
self.inner.len() == 1 && &self.inner[0] == other
}
}
impl<'a> PartialEq<[&'a str]> for HeaderValues {
fn eq(&self, other: &[&'a str]) -> bool {
self.inner.iter().eq(other.iter())
}
}
impl PartialEq<String> for HeaderValues {
fn eq(&self, other: &String) -> bool {
self.inner.len() == 1 && &self.inner[0] == other
}
}
impl<'a> PartialEq<&String> for HeaderValues {
fn eq(&self, other: &&String) -> bool {
self.inner.len() == 1 && &&self.inner[0] == other
}
}
impl From<HeaderValue> for HeaderValues {
fn from(other: HeaderValue) -> Self {
Self { inner: vec![other] }
}
}
impl AsRef<HeaderValue> for HeaderValues {
fn as_ref(&self) -> &HeaderValue {
&self.inner[0]
}
}
impl AsMut<HeaderValue> for HeaderValues {
fn as_mut(&mut self) -> &mut HeaderValue {
&mut self.inner[0]
}
}
impl Deref for HeaderValues {
type Target = HeaderValue;
fn deref(&self) -> &HeaderValue {
&self.inner[0]
}
}
impl DerefMut for HeaderValues {
fn deref_mut(&mut self) -> &mut HeaderValue {
&mut self.inner[0]
}
}
impl<'a> IntoIterator for &'a HeaderValues {
type Item = &'a HeaderValue;
type IntoIter = Values<'a>;
#[inline]
fn into_iter(self) -> Self::IntoIter {
self.iter()
}
}